/******************************************************************
*
*  EAX.H - DirectSound3D Environmental Audio Extensions version 2.0
*  Updated July 8, 1999
*
*******************************************************************
*/

#ifndef EAX_H_INCLUDED
#define EAX_H_INCLUDED

#ifdef __cplusplus
extern "C" {
#endif // __cplusplus

#ifndef OPENAL
#include <dsound.h>
	/*
	* EAX Wrapper Interface (using Direct X 7) {4FF53B81-1CE0-11d3-AAB8-00A0C95949D5}
	*/
	DEFINE_GUID(CLSID_EAXDirectSound,
	            0x4ff53b81,
	            0x1ce0,
	            0x11d3,
	            0xaa, 0xb8, 0x0, 0xa0, 0xc9, 0x59, 0x49, 0xd5);

	/*
	* EAX Wrapper Interface (using Direct X 8) {CA503B60-B176-11d4-A094-D0C0BF3A560C}
	*/
	DEFINE_GUID(CLSID_EAXDirectSound8,
	            0xca503b60,
	            0xb176,
	            0x11d4,
	            0xa0, 0x94, 0xd0, 0xc0, 0xbf, 0x3a, 0x56, 0xc);

#ifdef DIRECTSOUND_VERSION
#if DIRECTSOUND_VERSION == 0x0800
	__declspec(dllimport) HRESULT WINAPI EAXDirectSoundCreate8(GUID *, LPDIRECTSOUND8 *, IUnknown FAR *);
	typedef HRESULT(FAR PASCAL * LPEAXDIRECTSOUNDCREATE8)(GUID *, LPDIRECTSOUND8 *, IUnknown FAR *);
#endif
#endif

	__declspec(dllimport) HRESULT WINAPI EAXDirectSoundCreate(GUID *, LPDIRECTSOUND *, IUnknown FAR *);
	typedef HRESULT(FAR PASCAL * LPEAXDIRECTSOUNDCREATE)(GUID *, LPDIRECTSOUND *, IUnknown FAR *);

#else
#include <al.h>

#ifndef GUID_DEFINED
#define GUID_DEFINED
	typedef struct _GUID
	{
		unsigned long Data1;
		unsigned short Data2;
		unsigned short Data3;
		unsigned char Data4[8];
	} GUID;
#endif // !GUID_DEFINED

#ifndef DEFINE_GUID
#ifndef INITGUID
#define DEFINE_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
	extern const GUID FAR name
#else
#define DEFINE_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
	extern const GUID name = { l, w1, w2, { b1, b2,  b3,  b4,  b5,  b6,  b7,  b8 } }
#endif // INITGUID
#endif // DEFINE_GUID

	/*
	* EAX OpenAL Extension {4FF53B81-1CE0-11d3-AAB8-00A0C95949D5}
	*/
	typedef ALenum(*EAXSet)(const GUID *, ALuint, ALuint, ALvoid *, ALuint);
	typedef ALenum(*EAXGet)(const GUID *, ALuint, ALuint, ALvoid *, ALuint);
#endif

#pragma pack(push, 4)

	/*
	* EAX 2.0 listener property set {0306A6A8-B224-11d2-99E5-0000E8D8C722}
	*/
	DEFINE_GUID(DSPROPSETID_EAX20_ListenerProperties,
	            0x306a6a8,
	            0xb224,
	            0x11d2,
	            0x99, 0xe5, 0x0, 0x0, 0xe8, 0xd8, 0xc7, 0x22);

	// For compatibility with future EAX versions:
#define DSPROPSETID_EAX_ListenerProperties DSPROPSETID_EAX20_ListenerProperties
#define DSPROPSETID_EAX_SourceProperties DSPROPSETID_EAX20_BufferProperties

	typedef enum
	{
		DSPROPERTY_EAXLISTENER_NONE,
		DSPROPERTY_EAXLISTENER_ALLPARAMETERS,
		DSPROPERTY_EAXLISTENER_ROOM,
		DSPROPERTY_EAXLISTENER_ROOMHF,
		DSPROPERTY_EAXLISTENER_ROOMROLLOFFFACTOR,
		DSPROPERTY_EAXLISTENER_DECAYTIME,
		DSPROPERTY_EAXLISTENER_DECAYHFRATIO,
		DSPROPERTY_EAXLISTENER_REFLECTIONS,
		DSPROPERTY_EAXLISTENER_REFLECTIONSDELAY,
		DSPROPERTY_EAXLISTENER_REVERB,
		DSPROPERTY_EAXLISTENER_REVERBDELAY,
		DSPROPERTY_EAXLISTENER_ENVIRONMENT,
		DSPROPERTY_EAXLISTENER_ENVIRONMENTSIZE,
		DSPROPERTY_EAXLISTENER_ENVIRONMENTDIFFUSION,
		DSPROPERTY_EAXLISTENER_AIRABSORPTIONHF,
		DSPROPERTY_EAXLISTENER_FLAGS
	} DSPROPERTY_EAX_LISTENERPROPERTY;

	// OR these flags with property id
#define DSPROPERTY_EAXLISTENER_IMMEDIATE 0x00000000 // changes take effect immediately
#define DSPROPERTY_EAXLISTENER_DEFERRED  0x80000000 // changes take effect later
#define DSPROPERTY_EAXLISTENER_COMMITDEFERREDSETTINGS (DSPROPERTY_EAXLISTENER_NONE | \
        DSPROPERTY_EAXLISTENER_IMMEDIATE)

	// Use this structure for DSPROPERTY_EAXLISTENER_ALLPARAMETERS
	// - all levels are hundredths of decibels
	// - all times are in seconds
	// - the reference for high frequency controls is 5 kHz
	//
	// NOTE: This structure may change in future EAX versions.
	//       It is recommended to initialize fields by name:
	//              myListener.lRoom = -1000;
	//              myListener.lRoomHF = -100;
	//              ...
	//              myListener.dwFlags = myFlags /* see EAXLISTENERFLAGS below */ ;
	//       instead of:
	//              myListener = { -1000, -100, ... , 0x00000009 };
	//       If you want to save and load presets in binary form, you
	//       should define your own structure to insure future compatibility.
	//
	typedef struct _EAXLISTENERPROPERTIES
	{
		long lRoom;                    // room effect level at low frequencies
		long lRoomHF;                  // room effect high-frequency level re. low frequency level
		float flRoomRolloffFactor;     // like DS3D flRolloffFactor but for room effect
		float flDecayTime;             // reverberation decay time at low frequencies
		float flDecayHFRatio;          // high-frequency to low-frequency decay time ratio
		long lReflections;             // early reflections level relative to room effect
		float flReflectionsDelay;      // initial reflection delay time
		long lReverb;                  // late reverberation level relative to room effect
		float flReverbDelay;           // late reverberation delay time relative to initial reflection
		unsigned long dwEnvironment;   // sets all listener properties
		float flEnvironmentSize;       // environment size in meters
		float flEnvironmentDiffusion;  // environment diffusion
		float flAirAbsorptionHF;       // change in level per meter at 5 kHz
		unsigned long dwFlags;         // modifies the behavior of properties
	} EAXLISTENERPROPERTIES, *LPEAXLISTENERPROPERTIES;

	// used by DSPROPERTY_EAXLISTENER_ENVIRONMENT
	enum
	{
		EAX_ENVIRONMENT_GENERIC,
		EAX_ENVIRONMENT_PADDEDCELL,
		EAX_ENVIRONMENT_ROOM,
		EAX_ENVIRONMENT_BATHROOM,
		EAX_ENVIRONMENT_LIVINGROOM,
		EAX_ENVIRONMENT_STONEROOM,
		EAX_ENVIRONMENT_AUDITORIUM,
		EAX_ENVIRONMENT_CONCERTHALL,
		EAX_ENVIRONMENT_CAVE,
		EAX_ENVIRONMENT_ARENA,
		EAX_ENVIRONMENT_HANGAR,
		EAX_ENVIRONMENT_CARPETEDHALLWAY,
		EAX_ENVIRONMENT_HALLWAY,
		EAX_ENVIRONMENT_STONECORRIDOR,
		EAX_ENVIRONMENT_ALLEY,
		EAX_ENVIRONMENT_FOREST,
		EAX_ENVIRONMENT_CITY,
		EAX_ENVIRONMENT_MOUNTAINS,
		EAX_ENVIRONMENT_QUARRY,
		EAX_ENVIRONMENT_PLAIN,
		EAX_ENVIRONMENT_PARKINGLOT,
		EAX_ENVIRONMENT_SEWERPIPE,
		EAX_ENVIRONMENT_UNDERWATER,
		EAX_ENVIRONMENT_DRUGGED,
		EAX_ENVIRONMENT_DIZZY,
		EAX_ENVIRONMENT_PSYCHOTIC,

		EAX_ENVIRONMENT_COUNT
	};

	// Used by DSPROPERTY_EAXLISTENER_FLAGS
	//
	// Note: The number and order of flags may change in future EAX versions.
	//       It is recommended to use the flag defines as follows:
	//              myFlags = EAXLISTENERFLAGS_DECAYTIMESCALE | EAXLISTENERFLAGS_REVERBSCALE;
	//       instead of:
	//              myFlags = 0x00000009;
	//
	// These flags determine what properties are affected by environment size.
#define EAXLISTENERFLAGS_DECAYTIMESCALE        0x00000001 // reverberation decay time
#define EAXLISTENERFLAGS_REFLECTIONSSCALE      0x00000002 // reflection level
#define EAXLISTENERFLAGS_REFLECTIONSDELAYSCALE 0x00000004 // initial reflection delay time
#define EAXLISTENERFLAGS_REVERBSCALE           0x00000008 // reflections level
#define EAXLISTENERFLAGS_REVERBDELAYSCALE      0x00000010 // late reverberation delay time

	// This flag limits high-frequency decay time according to air absorption.
#define EAXLISTENERFLAGS_DECAYHFLIMIT          0x00000020

#define EAXLISTENERFLAGS_RESERVED              0xFFFFFFC0 // reserved future use

	// property ranges and defaults:

#define EAXLISTENER_MINROOM                       (-10000)
#define EAXLISTENER_MAXROOM                       0
#define EAXLISTENER_DEFAULTROOM                   (-1000)

#define EAXLISTENER_MINROOMHF                     (-10000)
#define EAXLISTENER_MAXROOMHF                     0
#define EAXLISTENER_DEFAULTROOMHF                 (-100)

#define EAXLISTENER_MINROOMROLLOFFFACTOR          0.0f
#define EAXLISTENER_MAXROOMROLLOFFFACTOR          10.0f
#define EAXLISTENER_DEFAULTROOMROLLOFFFACTOR      0.0f

#define EAXLISTENER_MINDECAYTIME                  0.1f
#define EAXLISTENER_MAXDECAYTIME                  20.0f
#define EAXLISTENER_DEFAULTDECAYTIME              1.49f

#define EAXLISTENER_MINDECAYHFRATIO               0.1f
#define EAXLISTENER_MAXDECAYHFRATIO               2.0f
#define EAXLISTENER_DEFAULTDECAYHFRATIO           0.83f

#define EAXLISTENER_MINREFLECTIONS                (-10000)
#define EAXLISTENER_MAXREFLECTIONS                1000
#define EAXLISTENER_DEFAULTREFLECTIONS            (-2602)

#define EAXLISTENER_MINREFLECTIONSDELAY           0.0f
#define EAXLISTENER_MAXREFLECTIONSDELAY           0.3f
#define EAXLISTENER_DEFAULTREFLECTIONSDELAY       0.007f

#define EAXLISTENER_MINREVERB                     (-10000)
#define EAXLISTENER_MAXREVERB                     2000
#define EAXLISTENER_DEFAULTREVERB                 200

#define EAXLISTENER_MINREVERBDELAY                0.0f
#define EAXLISTENER_MAXREVERBDELAY                0.1f
#define EAXLISTENER_DEFAULTREVERBDELAY            0.011f

#define EAXLISTENER_MINENVIRONMENT                0
#define EAXLISTENER_MAXENVIRONMENT                (EAX_ENVIRONMENT_COUNT-1)
#define EAXLISTENER_DEFAULTENVIRONMENT            EAX_ENVIRONMENT_GENERIC

#define EAXLISTENER_MINENVIRONMENTSIZE            1.0f
#define EAXLISTENER_MAXENVIRONMENTSIZE            100.0f
#define EAXLISTENER_DEFAULTENVIRONMENTSIZE        7.5f

#define EAXLISTENER_MINENVIRONMENTDIFFUSION       0.0f
#define EAXLISTENER_MAXENVIRONMENTDIFFUSION       1.0f
#define EAXLISTENER_DEFAULTENVIRONMENTDIFFUSION   1.0f

#define EAXLISTENER_MINAIRABSORPTIONHF            (-100.0f)
#define EAXLISTENER_MAXAIRABSORPTIONHF            0.0f
#define EAXLISTENER_DEFAULTAIRABSORPTIONHF        (-5.0f)

#define EAXLISTENER_DEFAULTFLAGS                  (EAXLISTENERFLAGS_DECAYTIMESCALE |        \
        EAXLISTENERFLAGS_REFLECTIONSSCALE |      \
        EAXLISTENERFLAGS_REFLECTIONSDELAYSCALE | \
        EAXLISTENERFLAGS_REVERBSCALE |           \
        EAXLISTENERFLAGS_REVERBDELAYSCALE |      \
        EAXLISTENERFLAGS_DECAYHFLIMIT)



	/*
	* EAX 2.0 buffer property set {0306A6A7-B224-11d2-99E5-0000E8D8C722}
	*/
	DEFINE_GUID(DSPROPSETID_EAX20_BufferProperties,
	            0x306a6a7,
	            0xb224,
	            0x11d2,
	            0x99, 0xe5, 0x0, 0x0, 0xe8, 0xd8, 0xc7, 0x22);

	// For compatibility with future EAX versions:
#define DSPROPSETID_EAX_BufferProperties DSPROPSETID_EAX20_BufferProperties

	typedef enum
	{
		DSPROPERTY_EAXBUFFER_NONE,
		DSPROPERTY_EAXBUFFER_ALLPARAMETERS,
		DSPROPERTY_EAXBUFFER_DIRECT,
		DSPROPERTY_EAXBUFFER_DIRECTHF,
		DSPROPERTY_EAXBUFFER_ROOM,
		DSPROPERTY_EAXBUFFER_ROOMHF,
		DSPROPERTY_EAXBUFFER_ROOMROLLOFFFACTOR,
		DSPROPERTY_EAXBUFFER_OBSTRUCTION,
		DSPROPERTY_EAXBUFFER_OBSTRUCTIONLFRATIO,
		DSPROPERTY_EAXBUFFER_OCCLUSION,
		DSPROPERTY_EAXBUFFER_OCCLUSIONLFRATIO,
		DSPROPERTY_EAXBUFFER_OCCLUSIONROOMRATIO,
		DSPROPERTY_EAXBUFFER_OUTSIDEVOLUMEHF,
		DSPROPERTY_EAXBUFFER_AIRABSORPTIONFACTOR,
		DSPROPERTY_EAXBUFFER_FLAGS
	} DSPROPERTY_EAX_BUFFERPROPERTY;

	// OR these flags with property id
#define DSPROPERTY_EAXBUFFER_IMMEDIATE 0x00000000 // changes take effect immediately
#define DSPROPERTY_EAXBUFFER_DEFERRED  0x80000000 // changes take effect later
#define DSPROPERTY_EAXBUFFER_COMMITDEFERREDSETTINGS (DSPROPERTY_EAXBUFFER_NONE | \
        DSPROPERTY_EAXBUFFER_IMMEDIATE)

	// Use this structure for DSPROPERTY_EAXBUFFER_ALLPARAMETERS
	// - all levels are hundredths of decibels
	//
	// NOTE: This structure may change in future EAX versions.
	//       It is recommended to initialize fields by name:
	//              myBuffer.lDirect = 0;
	//              myBuffer.lDirectHF = -200;
	//              ...
	//              myBuffer.dwFlags = myFlags /* see EAXBUFFERFLAGS below */ ;
	//       instead of:
	//              myBuffer = { 0, -200, ... , 0x00000003 };
	//
	typedef struct _EAXBUFFERPROPERTIES
	{
		long lDirect;                // direct path level
		long lDirectHF;              // direct path level at high frequencies
		long lRoom;                  // room effect level
		long lRoomHF;                // room effect level at high frequencies
		float flRoomRolloffFactor;   // like DS3D flRolloffFactor but for room effect
		long lObstruction;           // main obstruction control (attenuation at high frequencies)
		float flObstructionLFRatio;  // obstruction low-frequency level re. main control
		long lOcclusion;             // main occlusion control (attenuation at high frequencies)
		float flOcclusionLFRatio;    // occlusion low-frequency level re. main control
		float flOcclusionRoomRatio;  // occlusion room effect level re. main control
		long lOutsideVolumeHF;       // outside sound cone level at high frequencies
		float flAirAbsorptionFactor; // multiplies DSPROPERTY_EAXLISTENER_AIRABSORPTIONHF
		unsigned long dwFlags;       // modifies the behavior of properties
	} EAXBUFFERPROPERTIES, *LPEAXBUFFERPROPERTIES;

	// Used by DSPROPERTY_EAXBUFFER_FLAGS
	//    TRUE:    value is computed automatically - property is an offset
	//    FALSE:   value is used directly
	//
	// Note: The number and order of flags may change in future EAX versions.
	//       To insure future compatibility, use flag defines as follows:
	//              myFlags = EAXBUFFERFLAGS_DIRECTHFAUTO | EAXBUFFERFLAGS_ROOMAUTO;
	//       instead of:
	//              myFlags = 0x00000003;
	//
#define EAXBUFFERFLAGS_DIRECTHFAUTO 0x00000001 // affects DSPROPERTY_EAXBUFFER_DIRECTHF
#define EAXBUFFERFLAGS_ROOMAUTO     0x00000002 // affects DSPROPERTY_EAXBUFFER_ROOM
#define EAXBUFFERFLAGS_ROOMHFAUTO   0x00000004 // affects DSPROPERTY_EAXBUFFER_ROOMHF

#define EAXBUFFERFLAGS_RESERVED     0xFFFFFFF8 // reserved future use

	// property ranges and defaults:

#define EAXBUFFER_MINDIRECT                  (-10000)
#define EAXBUFFER_MAXDIRECT                  1000
#define EAXBUFFER_DEFAULTDIRECT              0

#define EAXBUFFER_MINDIRECTHF                (-10000)
#define EAXBUFFER_MAXDIRECTHF                0
#define EAXBUFFER_DEFAULTDIRECTHF            0

#define EAXBUFFER_MINROOM                    (-10000)
#define EAXBUFFER_MAXROOM                    1000
#define EAXBUFFER_DEFAULTROOM                0

#define EAXBUFFER_MINROOMHF                  (-10000)
#define EAXBUFFER_MAXROOMHF                  0
#define EAXBUFFER_DEFAULTROOMHF              0

#define EAXBUFFER_MINROOMROLLOFFFACTOR       0.0f
#define EAXBUFFER_MAXROOMROLLOFFFACTOR       10.f
#define EAXBUFFER_DEFAULTROOMROLLOFFFACTOR   0.0f

#define EAXBUFFER_MINOBSTRUCTION             (-10000)
#define EAXBUFFER_MAXOBSTRUCTION             0
#define EAXBUFFER_DEFAULTOBSTRUCTION         0

#define EAXBUFFER_MINOBSTRUCTIONLFRATIO      0.0f
#define EAXBUFFER_MAXOBSTRUCTIONLFRATIO      1.0f
#define EAXBUFFER_DEFAULTOBSTRUCTIONLFRATIO  0.0f

#define EAXBUFFER_MINOCCLUSION               (-10000)
#define EAXBUFFER_MAXOCCLUSION               0
#define EAXBUFFER_DEFAULTOCCLUSION           0

#define EAXBUFFER_MINOCCLUSIONLFRATIO        0.0f
#define EAXBUFFER_MAXOCCLUSIONLFRATIO        1.0f
#define EAXBUFFER_DEFAULTOCCLUSIONLFRATIO    0.25f

#define EAXBUFFER_MINOCCLUSIONROOMRATIO      0.0f
#define EAXBUFFER_MAXOCCLUSIONROOMRATIO      10.0f
#define EAXBUFFER_DEFAULTOCCLUSIONROOMRATIO  0.5f

#define EAXBUFFER_MINOUTSIDEVOLUMEHF         (-10000)
#define EAXBUFFER_MAXOUTSIDEVOLUMEHF         0
#define EAXBUFFER_DEFAULTOUTSIDEVOLUMEHF     0

#define EAXBUFFER_MINAIRABSORPTIONFACTOR     0.0f
#define EAXBUFFER_MAXAIRABSORPTIONFACTOR     10.0f
#define EAXBUFFER_DEFAULTAIRABSORPTIONFACTOR 1.0f

#define EAXBUFFER_DEFAULTFLAGS               (EAXBUFFERFLAGS_DIRECTHFAUTO | \
        EAXBUFFERFLAGS_ROOMAUTO |     \
        EAXBUFFERFLAGS_ROOMHFAUTO)

	// Material transmission presets
	// 3 values in this order:
	//     1: occlusion (or obstruction)
	//     2: occlusion LF Ratio (or obstruction LF Ratio)
	//     3: occlusion Room Ratio

	// Single window material preset
#define EAX_MATERIAL_SINGLEWINDOW          (-2800)
#define EAX_MATERIAL_SINGLEWINDOWLF        0.71f
#define EAX_MATERIAL_SINGLEWINDOWROOMRATIO 0.43f

	// Double window material preset
#define EAX_MATERIAL_DOUBLEWINDOW          (-5000)
#define EAX_MATERIAL_DOUBLEWINDOWHF        0.40f
#define EAX_MATERIAL_DOUBLEWINDOWROOMRATIO 0.24f

	// Thin door material preset
#define EAX_MATERIAL_THINDOOR              (-1800)
#define EAX_MATERIAL_THINDOORLF            0.66f
#define EAX_MATERIAL_THINDOORROOMRATIO     0.66f

	// Thick door material preset
#define EAX_MATERIAL_THICKDOOR             (-4400)
#define EAX_MATERIAL_THICKDOORLF           0.64f
#define EAX_MATERIAL_THICKDOORROOMRTATION  0.27f

	// Wood wall material preset
#define EAX_MATERIAL_WOODWALL              (-4000)
#define EAX_MATERIAL_WOODWALLLF            0.50f
#define EAX_MATERIAL_WOODWALLROOMRATIO     0.30f

	// Brick wall material preset
#define EAX_MATERIAL_BRICKWALL             (-5000)
#define EAX_MATERIAL_BRICKWALLLF           0.60f
#define EAX_MATERIAL_BRICKWALLROOMRATIO    0.24f

	// Stone wall material preset
#define EAX_MATERIAL_STONEWALL             (-6000)
#define EAX_MATERIAL_STONEWALLLF           0.68f
#define EAX_MATERIAL_STONEWALLROOMRATIO    0.20f

	// Curtain material preset
#define EAX_MATERIAL_CURTAIN               (-1200)
#define EAX_MATERIAL_CURTAINLF             0.15f
#define EAX_MATERIAL_CURTAINROOMRATIO      1.00f


#pragma pack(pop)

#ifdef __cplusplus
}
#endif // __cplusplus

#endif
